--- version: rssac002v4 service: a.root-servers.net start-period: '2022-12-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6054442377 dns-udp-queries-received-ipv6: 1815592594 dns-tcp-queries-received-ipv4: 329846462 dns-tcp-queries-received-ipv6: 73210979 dns-udp-responses-sent-ipv4: 5873719783 dns-udp-responses-sent-ipv6: 1812841312 dns-tcp-responses-sent-ipv4: 300827138 dns-tcp-responses-sent-ipv6: 72781451